Shark ndivo vanonyanya kuzvidya mugungwa, asi kwete nekuda kwechikonzero ichocho, vanoregererwa kutyisidziro dzakasimba dzinogara dzichiiswa nevanhu. Kuderera kweshark zvinogona kukonzera shanduko muchimiro chemuviri wehove izvo zvakagadziriswa mukushanduka-shanduka kwese.
Hove dzichava sei pasina kuvapo kwehaki?
Kugadziriswa kwehove
Hove dzinovandudza nhengo dzemuviri kuti dzijairane nemamiriro ezvinhu mukushanduka kwemarudzi. Semuenzaniso, ivo vanokudziridza maziso mahombe kuti vaone zvirinani, zvimbi zvekutuhwina nekukurumidza uye kutiza kubva kuzvikara uye kunyange mucous membranes kuti vazvidzivirire kubva kune huturu hwedzimwe algae senge anemones.
Kana shark, chii ndicho chikara chikuru chemakungwa, inotanga kudzikisira nekuparadza huwandu hwevanhu nekuda kwechiito chevanhu, hove hadzidi nhengo dzakaomesesa dzakadaro kutiza kubva padziri, saka iyo physiognomy yehove inogona kuchinja mukati memazana emakore.
Semuenzaniso, dzimwe mhando dzehove dzinogona kumira kugadzira maziso akakura kudaro kana kuumba miswe midiki, sezvo kudiwa kwayo kwekushambira kuchinyangarika zvakanyanya.
Chiratidziro ichi mhedzisiro yekutsvaga pamhando dzakasiyana dzehove muRowley Shoals uye Scott Reef, mahurongwa maviri emakorari akavakidzana kuchamhembe kwakadziva kumadokero kweAustralia, ayo akagumisa kuti shanduko idzi dzinogona kukanganisa zvisikwa
“Musiyano muchimiro chemuviri wehove dzinogara mumakorari maviri anogona kuva nemhedzisiro pakufamba kwesimba munzvimbo yezvinhu pakupedzisira kukanganisa webhu yezvokudya"Akadaro mutungamiri webasa, Shanta Bhari, weYunivhesiti yeWestern Australia (UWA).
Musiyano mukuru wakasimbiswa pakati pemakorari maviri akadzidziswa ndeekuti hove haibvumirwe kuRowley Shoals uye kuScott Reef ndiko, sekureba sekutengeserana. Shark hove mune ino coral reef yanga ichingoitika kweanopfuura makore zana uye, semhedzisiro, shark vanhu vari kuderera.
Zvinokanganisa mashark
Mushure memakumi emakore apfuura, hove yekutengesa yehaki yakawedzera zvakanyanya mudunhu iri. Saizvozvowo kune kudiwa kwehaki fins mumusika weAsia. Izvi, sezvaungatarisira, iri kukonzera kukuvadza kwakanyanya kune vanhu veshark paScott Reef.
Vatsvagiri vakaunganidza hove dzinokwana mazana matanhatu negumi neshanu dzedzinomwe marudzi munzvimbo mbiri idzi ndokudzitora mifananidzo. Kuti uone mutsauko we morphological yehove imwe neimwe, iwo mapikicha akaongororwa manhamba kuti aone hupamhi uye kureba kwemuviri wehove imwe neimwe, nzvimbo yemeso uye muswe.
Morphological shanduko
Mushure memhedzisiro yekuongororwa kwemifananidzo ye morphology yehove mune ese coral reef, zvakawanikwa kuti muScott Reef maziso ehove ayo anowanzo kuve nyama yehaki iwo ari 46% madiki pane zvienzaniso zverudzi rumwe chete vanogara muRowley Shoals.
Mhedzisiro imwechete yakawanikwa mukuongororwa kweiyo muswe chiyero, sezvo iri 40% diki. Izvi zvinogona kunge zviri nekuti hove hadzidi miswe mikuru kana maziso kuti vaone uye vatize kubva kuma shark, nekuti huwandu hwavo huri kudzikira.
"Maziso akakosha pakutsvaga zvikara, kunyanya munzvimbo dzakaderera mwenje, apo shaki dzinowanzo kuvhima mhuka dzadzo, uye chimiro chemuswe chinovatendera kuti vawedzere kumhanya uye kupukunyuka shark," akadaro Hammerschlag, munyori wepamberi wenyaya yekuongorora.
Sezvauri kuona, munhu ari kukonzera shanduko mune morphology yehove, sezvo ayo mashandiro ekuona uye kunzvenga kwevanodya havasisina basa zvakanyanya. Zvishoma nezvishoma, pamusoro pemakore, morphology yeiyi hove inogona kunge yakatosiyana pane imwe coral reef uye imwe, kunyangwe iri yemhando imwe chete.